//
//  ViewController.m
//  RSToolNSObject
//
//  Created by thinkjoy on 16/9/24.
//  Copyright © 2016年 Thinkjoy_RS. All rights reserved.
//

#import "ViewController.h"
#import "RSSystemUtit.h"

#define IsNilOrNull(_ref)            (((_ref) == nil) || ([(_ref) isEqual:[NSNull null]]) || ([(_ref) length]==0) || ([(_ref)isEqualToString:@" "]))

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    NSString * ting = @"     ";
    if (IsNilOrNull(ting)) {
        NSLog(@"%@12",ting);
    }
    
    NSLog(@"%@12",ting);
    
    NSLog(@"%@",[RSSystemUtit guid]);//6B8BC6FD-1421-4E61-B94C-DD7C937EA0EB;D1C1A2DA-B489-4973-BB25-F05C9006FF2C
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end
